381754505 has 8 divisors (see below), whose sum is σ = 499751424. Its totient is φ = 277639600.

The previous prime is 381754489. The next prime is 381754589. The reversal of 381754505 is 505457183.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 381754505 - 2⁴ = 381754489 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3470441 + ... + 3470550.

It is an arithmetic number, because the mean of its divisors is an integer number (62468928).

Almost surely, 2^381754505 is an apocalyptic number.

It is an amenable number.

381754505 is a deficient number, since it is larger than the sum of its proper divisors (117996919).

381754505 is a wasteful number, since it uses less digits than its factorization.

381754505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6941007.

The product of its (nonzero) digits is 84000, while the sum is 38.

The square root of 381754505 is about 19538.5389678962. The cubic root of 381754505 is about 725.4286834546.

The spelling of 381754505 in words is "three hundred eighty-one million, seven hundred fifty-four thousand, five hundred five".